KEY TO IMPORTANT WOODY PLANTS 



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rust; along; streams, Wallowa, Blue Mts., ne. Oreg., 

 se. Wash, (type locality, Blue Mts., lat. 46° 33'). 

 Idaho gooseberry (Ribes irriguum) . 

 16. Spines mostly 3-parted, to slightly more than y 2 

 inch long; prickles and bristles often numerous; 

 twigs rather densely whitish- or grayish-hairy, with 

 many gland-tipped hairs; stems slender, long-arch- 

 ing, somewhat vinelike, to 13 feet long; along 

 streams, ne. Oreg., e. Wash, (type locality along 

 Umatilla River near Pendleton, Oreg.), 



Umatilla gooseberry (Ribes cognatum). 



(Enlarged portion of 

 vigorous shoot) 



Idaho gooseberry 



Spongy pith 



Enlarged tip of vigorous 

 shoot; part of older stem 

 and berry about natural 

 (Enlarged twig, near tip) size 



Goodding gooseberry Snow gooseberry 



(Enlarged portion 

 of twig) 



Side bud 



Leaf scar 

 ' j Simple spine 



F-43407.'. 



Whitestem gooseberry 



